ipa-fnsummary.c (ipa_call_context): New constructor.

ipa-fnsummary.c (ipa_call_context): New constructor.

	* ipa-fnsummary.c (ipa_call_context): New constructor.
	(estimate_node_size_and_time): Turn to ...
	(ipa_call_context::estimate_size_and_time): ... this one.
	(ipa_call_context::release): New.
	* ipa-fnsummary.h (ipa_call_context): New class.
	(estimate_node_size_and_time): Remove.
	* ipa-inline-analysis.c (do_estimate_edge_time, do_estimate_edge_size,
	do_estimate_edge_hints): Update.

From-SVN: r277755